Correct a PHP error when saving on system_advanced_admin.php. Fixes #8606
Correct a PHP error when saving on system_advanced_admin.php. Fixes #8606

dennypage/pfsense,pfsense/pfsense,pfsense/pfsense,NewEraCracker/pfsense,dennypage/pfsense,NewEraCracker/pfsense,phil-davis/pfsense,dennypage/pfsense,phil-davis/pfsense,pfsense/pfsense,NewEraCracker/pfsense,dennypage/pfsense,pfsense/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,phil-davis/pfsense